The biggest challenges were by far the elevators, and the number of people competing for space to eat at the complimentary breakfast each morning. With respect to breakfast, the hotel gave out a handout that said if we arrived for breakfast between 6 and 8 AM, we would have a better chance of beating the crowds as opposed to 8 to 10 AM when the crowds are the highest, so that was manageable. The elevators were completely different story. There were times when we found ourselves waiting for an elevator for upwards of five to eight minutes until an elevator finally arrived on our floor. Bear that in mind if you have the option of staying on a lower floor as opposed to a higher floor, as you may find yourself taking the stairs just to avoid some of the elevator rides.
The staff was very friendly, and very attentive to our requests sent through the Hilton text service. Zero complaints on the cleanliness of the hotel, and our room on the 33rd floor was very quiet.